Improved brick block and process and apparatus therefor
CA 2257325 A1 · Owner: Stevens, Craig A. · Inventors: Stevens, Craig A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for the manufacture of brick block i.e. a concrete chimney or wall block with an impressed brick grout pattern on the face thereof, comprises a mold adapted to fit a known concrete block manufacturing machine. The mold has means to impress a simulated laid brick pattern onto at least one vertical face of the block said means, comprising a grout bar moveable in and out from a wall of the mold or by hydraulic means. The process is also claimed as is the completed brick block.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 30, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 30, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.